I installed a Hayward De6020 filter with 1hp pump. I'm only like 25ft away from the pool now compared to 70ft that i was before. My pool has 2 suction pipe 1 from the skimmer and i new one i made from the main drain everything with 2 inch pipe. then from pump to filter and from filter to 4 returns in the pool. I also connect my other 2 returns that were disconnected before. so i have a total of 6 returns. <---- i think this may be my problem but I'm just asking in case im wrong. The pressure gauge on my filter is showing 0-2 psi. but the returns in the pool have enough pressure. So I'm confused if this is normal. The original filter gauge broke so i bought a new one at pinch a penny and they gave me a oil pressure gauge. It looks like it has water inside. Please help and sorry for asking so many questions.